Abstract: Under the background of the rapid development of non-fossil energy and the safety of energy supply, how to improve the economic benefits of coal enterprises has become an important concern. This study takes the coal industry of Baotou Energy Company under the integrated operation mode of National Energy Group as an example, and establishes three models of operating profit calculation, profit calculation of purchased coal and profit calculation of self-produced coal, then applies the model to the operating calculation system. The operation calculation system comprehensively calculates and analyzes the data, providing scientific basis and important reference for the decision-making analysis of enterprise leaders. At the same time, it provides guarantee for the comprehensive adjustment of production plan, so as to effectively ensure coal supply and supply security. Using this model, the economic calculation of Lijiahao Coal Mine and Wanli No.1 Coal Mine is carried out. The results are in line with the actual situation of coal mine production costs and profits. The system effectively improve the production and operation efficiency of coal mines on the premise of ensuring energy security.